Seoul→Jeju CityNonstop Flight TimeICN–CJU

Seoul (Incheon International Airport) to Jeju City (Jeju International Airport).

Direct flights from ICN to CJU have an estimated flight time of about 1h 9m, based on the 273-mile great-circle distance. Our current captured departure sample includes 2×/wk across 1 captured airline, with Jeju Air appearing most often in that sample. Captured departure times run from 18:05 to 18:05 local time.

Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for ICN to CJU, last seen June 15, 2026. Frequency uses 2 scheduled departures across 2 observed days; flight time is estimated from great-circle distance until this route has enough tracked flights for an observed average. Provider coverage can miss operators on some routes, so confirm live timetables before booking.